User's Manual

KDC300 User Manual
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Appendix A. Barcode and Scan Options
A.1 System Information
User can set up sleep time between 0.5 and 10 seconds. Please set up correct date and time before
using the KDC300 for the first time, after replacing the battery or after resetting the device.
User can check the memory and battery status in the system menu. The installed firmware version and
device serial number can also be verified in the system menu.
A.2 Miscellaneous Barcode Information
How tall should a linear barcode symbol be?
Industry standards suggest a height of either 6.5mm or 15% of the symbol length, whichever is greater.
Symbols of lesser than recommended heights may cause recognition problems.
Should I use check characters?
Yes, we recommend the use of check-characters in barcodes. Operating without check-characters is not
safe and will lead to errors that are costly to correct. Using check-characters positively effects data
integrity especially when character density is at the limits and/or image quality is not at it's best.
How many barcodes can we store?
The number of barcodes that can be stored in these bytes depends on the size of the barcodes
Example
: : If only UPCA barcodes are scanned and the check digit is not transmitted, then each barcode
takes up 11 (barcode data) + 2 (total bytes) + 2 (length and type) + 4 (time stamp) = 19 bytes. The
maximum number of UPCA barcodes that can be saved is 204,800/19 =10,778. However, the maximum
number of barcodes that can be stored is 10,240. Therefore, KDC300 can store 10,240 UPCA barcodes.
If different length barcodes are mixed, then a user cannot compute a priori the maximum number of
barcodes that can be stored.